Construction method of settlement joint water seepage prevention system between frame bridge and retaining wall

Abstract

A construction method of a settlement joint water seepage prevention system between a frame bridge and a retaining wall comprises the following steps: constructing a frame bridge wall body and a bladeangle wall repairing wall body; installing a water-swelling water stop strip in a U-shaped groove, and pasting foam plastic boards on the wall end faces of the frame bridge wall body and the edge angle wall repairing wall body located on the two sides of the water-swelling water stop strip; and constructing the retaining wall to manufacture the water seepage prevention system of the settlement joint between the frame bridge and the retaining wall. The method has the following advantages: the U-shaped groove is formed by the reserved wood plate joint strip, so that the efficiency is improved,and the depth, straightness and engineering quality of the groove can be ensured; the foam plastic boards can ensure the width of the settlement joint; the water-swelling water stop strip, the frame bridge and the retaining wall form the complete water seepage prevention closed system, so the water seepage prevention effect of the settlement joint is ensured; and the possibility that water leakageaffects the attractiveness of the wall body and repairing affects traffic operation is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of frame bridge construction, in particular to a construction method for a settlement joint anti-seepage water system between a frame bridge and a retaining wall. Background technique [0002] With the rapid development of my country's railway construction, the speed of trains has increased significantly, and the level crossings on normal-speed railways can no longer adapt to the current situation of rapid development. Therefore, level crossings are gradually replaced by underpass frame bridges and overpass bridges. . For underpass frame bridges, the frame bridge is generally prefabricated in the foundation pits on one side or both sides of the line, and then the frame bridge is passed through the existing railway under the jacking method, and retaining walls are built at the four corners of the frame bridge after it is in place and build roads. The settlement joints between the retaining wall and the frame...

AI Technical Summary

Problems solved by technology

The settlement joints between the retaining wall and the frame bridge wall and the edge patch wall are generally filled with asphalt hemp or foam plastic boards, but this cannot effectively prevent water leakage

According to the past situation, when the settlement joint between the frame bridge and the retaining wall seeps water, it will have a negative impact on the wall of the frame bridge and the retaining wall, and affect the appearance

Generally, it is repaired by chiseling and refilling, but the repair will have a certain impact on normal traffic operation

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